HardLabs

Mcu

wntrblm·Hubble·hardware/breakouts/mcu/mcu.kicad_pcb

Mcu PCB layout, top view — open source Microchip SAM board by wntrblm

About the Mcu PCB

Mcu is an open source Microchip SAM PCB design by wntrblm, published on GitHub under the CC-BY-SA-4.0 license. It is a 2-layer board measuring 26.9 × 68.6 mm, with 27 components from 16 distinct parts.

Its main chip is the ATSAMD51J20A-M, from the Microchip SAM family. By type, the board carries 10 capacitors, 5 resistors, 4 connectors, 4 diodes, 1 IC and 1 crystal.

From the project

Re-usable test jig controller

Hubble is Winterbloom's re-usable development board for test jigs.

This repository contains the hardware design files and firmware files for Hubble.

- firmware/ contains the firmware source code, build scripts, and third-party dependencies. The firmware is written in C using GCC ARM. - hardware/ contains the hardware design files for the mainboard, jackboard, panel, and programming board. These are all created using KiCAD. - mechanical/ contains various designs for laser-cut and 3d-printed parts used to modify the stock test jig assembly for Hubble.

Main components on the Mcu

ATSAMD51J20A-M

Mcu bill of materials (BOM)

27 components, 16 distinct parts.

QtyPartRefs
1
ATSAMD51J20A-M
U2
1
32.768kHz
Y1
1
USB_B_Receptacle
J1
1
SWD
J2
2
Conn_01x26
J3, J4
1
RESET
SW1
1
POWER
D1
1
USB
D2
1
Dotstar
D3
1
ACT
D4
1
300mA
FB1
2
18pF
C1, C2
1
4.7nF
C3
6
0.1uF
C4, C5, C7, C8, C9, C10
1
4.7uF
C6
5
10k
R1, R2, R3, R4, R5

Mcu design files

The KiCad project lives in the wntrblm/Hubble repository on GitHub; these links point at the commit this page was built from.

Mcu: common questions

What microcontroller does the Mcu use?

The Mcu is built around the ATSAMD51J20A-M, from the Microchip SAM family.

How big is the Mcu PCB?

The Mcu measures 26.9 × 68.6 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Mcu?

27 components, from 16 distinct parts. The full bill of materials is listed on this page.

Where can I download the Mcu design files?

From the wntrblm/Hubble repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Mcu design in my own project?

Yes, under the terms of its CC-BY-SA-4.0 license, which wntrblm chose for the repository.

Can I test firmware for the Mcu without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug Microchip SAM firmware against it before you order a PCB.

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